Side by side

Praesidus A-5 UDTvsGruppo Gamma Field III GMT

The numbers, the dial colors, the calibers — laid out so you can stop flipping between tabs.

A-5 UDT
PraesidusA-5 UDT
MSRP $645
Field III GMT
Gruppo GammaField III GMT
MSRP $459

At a glance

14 of 29 specs differ
Diameter
A-5 UDT38mm
Field III GMT40mm
Power Reserve
A-5 UDT40h
Field III GMT41h
Water Resistance
A-5 UDT200m
Field III GMT200m
MSRP
A-5 UDT$645
Field III GMT$459

Full specifications

Case

6 specs
Category
Diver
GMT
Diameter
38mm
40mm
Thickness
14mm
Lug-to-Lug
48.5mm
Lug Width
20mm
22mm
Material
316L Stainless Steel
Stainless Steel

Crystal & Dial

4 specs
Crystal
Domed Sapphire
Sapphire
AR Coating
Inner
Yes
Dial Color
Blue
Black
Lume
None
Super-LumiNova

Movement

3 specs
Caliber
Miyota 9015
Seiko Instruments NH38A
Power Reserve
40h
41h
Complications
None
GMT

Pricing

1 specs
MSRP
$645
$459

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What people say

Owners + reviewers, side by side

Synthesized for each watch independently from owner discussions, enthusiast forums, written reviews, and video reviewers.

Praesidus A-5 UDT

The Praesidus A-5 UDT is noted for its historically inspired design, featuring an oversized crown cap and chain that pays homage to WW2 canteen watches. Reviewers highlight its functional dial with embossed, Super-LumiNova filled numerals and markers for legibility, alongside 200m water resistance and a 38mm brushed stainless steel case. Some owners find the 11.7mm thickness problematic, describing it as disproportionately tall. The watch's ana/digi functionality and connection to special operations forces are also praised. On balance, owners and reviewers appreciate the Praesidus A-5 UDT for its unique historical design elements and functional dial.

Gruppo Gamma Field III GMT

Owners praise the Gruppo Gamma Field III GMT for its look and value, with specific mentions of its sandwich dial and comfortable OEM straps. One owner notes incredible quality for the price across their Gruppo Gamma watches. The watch features a 40mm brushed stainless steel case, box sapphire crystal, and a Seiko NH34A movement with a 41-hour power reserve and stated accuracy of -20~+40 s/day. Some find the lack of a date window a drawback for a GMT, and question its differentiation from other NH34-powered watches. On balance, owners and reviewers find the Gruppo Gamma Field III GMT to be a good value with quality construction for its price point.

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